The singer has now cancelled a further string of shows which she had been due to play in the UK next month, to allow her to recover.

Adele has been beset by problems - with her voice just "switching off" - and apologised to fans last month for calling off a US tour.

She had been diagnosed with a vocal cord haemorrhage.

She had been due to play a series of UK shows beginning on November 7 at Wolverhampton Civic Hall.

But she has now been forced to pull the plug on all her remaining commitments for the rest of the year.

She has been told by medics that she needs to rest and recuperate.

A statement released on her behalf today said: "It is with deep regret that Adele has been forced to cancel her remaining live dates and promotional appearances in 2011.

"She is to undergo surgery to alleviate the current issues with her throat and a full recovery is expected. As a result, doctors have ordered her to rest her voice and completely recuperate before looking to schedule any work commitments."

In a lengthy blog about her condition earlier this month, the Someone Like You singer said she was "heartbroken and worried" by the ongoing problems with her voice.

"I have absolutely no choice but to recuperate properly and fully, or I risk damaging my voice forever," she said at the time her US dates were pulled.

Adele has experienced astonishing sales success this year with three million copies of her second album 21 sold in the UK.

She said in her blog that her voice had "switched off" entirely on a number of occasions in recent months.

Earlier in the year she struggled through shows with a chest infection and it later transpired she also had a problem with her vocal cords.